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  3. Mineral Resource Data System (MRDS)

Miramar

Past Producer in Chile with commodity Copper
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10104425
MRDS ID TC03248
Record type Site
Current site name Miramar

Geographic coordinates

Geographic coordinates: -70.32455, -23.71919 (WGS84)
Elevation 800

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Atacamite Ore
Chalcocite Ore
Chrysocolla Ore

Alteration

  • (Local) Sericitic

Analytical data

Result 2.0-4.3% CU

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name La Negra Formation
    Rock description La Negra Formation
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -70.32455, -23.71919
ListMap

Economic information

Ore body information

  • Strike N44W
    Dip 66NE
    Length 30M
    Width 5M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Sierra Del Ancla

Workings at the site

  • Type of workings Surface
    Area 0.008HA
    Overall depth 2.5M
    Overall length 13.72M
    Overall width 5M

Comments on development

  • ECON.COM: UNECONOMIC DUE TO LOW TONNAGE AND HIGH CONSUMPTION OF ACID DURING EXTRACTION.

Reference information

Bibliographic references

  • Deposit

    FRUTOS, J. AND PINCHEIRA, M., 1986, FICHAS METALOGENICAS DE YACIMIENTOS MINERALES METALICOS CHILENOS, IN FRUTOS, J., OYARZUN, J., AND PINCHEIRA, M., EDS., GEOLOGIA Y RECURSOS MINERALES CHILENOS: UNIVERSIDAD DE CONCEPCION, CONCEPCION, P. 841-888.

  • Deposit

    BORIC, R., DIAZ, F., AND MAKSAEV, V., 1984, COMPLEMENTO MAPA METALOGENICO, II REGION: GERENCIA DE DESAROLLO, SANTIAGO, (12 VOLS.).

  • Deposit

    ENAMI, 1961 & 1970, #22245.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit MINERALIZATION IN FRACTURES WHICH TREND 0, 60E <20,000T CU

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1989 Williams, William C. University of Arizona

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site